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Publication numberUS5080583 A
Publication typeGrant
Application numberUS 07/572,036
Publication dateJan 14, 1992
Filing dateNov 23, 1990
Priority dateNov 23, 1990
Fee statusPaid
Publication number07572036, 572036, US 5080583 A, US 5080583A, US-A-5080583, US5080583 A, US5080583A
InventorsTanya L. Hunting
Original AssigneeHunting Tanya L
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Acrylic polymers
US 5080583 A
Abstract
The fragranced orthodontic appliance and method of making the same utilizes a fragranced "cold cure" acrylic. The method comprises the steps of combining fragrancing oils in a predetermined ratio with a monomer liquid. The monomer is then combined in a conventional manner with a polymer to form a hard acrylic orthodontic appliance. The appliance includes a hard cold cure acrylic base member which is formed from a suitable powdered polymeric component and a liquid monomeric component, the liquid monomeric component containing a selected fragrancing oil therein. The method comprises the steps of admixing an effective amount of fragrancing oil with a liquid monomeric component and then admixing the resulting mixture with an effective amount of a powdered polymeric component to form an acrylic base member. Hardware is then embedded in the acrylic base member.
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Claims(5)
What is claimed is:
1. An orthodontic appliance for use by a patient comprising:
a hard cold-cured acrylic base member having a suitable fragrancing oil homogeneously dispersed therein, said base member adapted to conform to a preselected palate region located in the patient's mouth; and
associated metallic hardware attached to said base member and extending outward therefrom, said hardware being adapted to contact the teeth of the patient located adjacent to said palate region when the appliance is in position in the patient's mouth.
2. The orthodontic appliance of claim 1 wherein said hard cold cured base member is prepared by a method comprising the following steps:
admixing an effective amount of a powdered polymeric precursor to acrylic acid with an effective amount of a liquid monomeric acrylic acid precursor, said monomeric precursor containing a fragrancing oil present in a ration of fragrancing oil to monomer of between 1:5 and 1:10; and
allowing said resulting mixture to react and solidify into said base member.
3. The orthodontic appliance of claim 1 wherein the monomeric acrylic acid precursor is methyl methacrylate.
4. A process for making an orthodontic appliance comprising the steps of:
admixing an effective amount of a powdered polymeric precursor of acrylic acid with an effective amount of a liquid monomeric precursor of acrylic acid to form a hard cold curable acrylic material, said liquid monomeric precursor consisting essentially of a monomeric compound reactable with said polymeric compound and a fragrancing oil wherein said fragrancing oil is present in an amount between 1:5 and 1:10, fragrancing oil to monomer respectively;
allowing said admixed material to react to form a solid acrylic material;
conforming said acrylic material to contours of a patient's mouth; and
embedding metallic hardware in the acrylic material such that said metallic hardware extends outward therefrom said contacts said patient's teeth when the appliance is placed in position in said patient's mouth.
5. The process of claim 4 wherein the monomeric precursor is methylmethacrylate.
Description
BACKGROUND OF THE INVENTION

1. Technical Field

This invention relates to orthodontic appliances.

2. Background Art

Anyone who has had orthodontic treatment knows the discomfort associated with the wearing of an orthodontic appliance, such as a retainer. They are bulky and often impede clear speech. Exposed wires can also be an embarrassment, especially to younger people. Habitual wearing of the appliance is required, however, in order to achieve the desired results.

An orthodontic appliance consists of wires and auxiliary devices imbedded in a hard acrylic resin which conforms to the upper or lower palate of the mouth. Some such appliances are: Frankel, Bionator, Retainer, Sagittal, and Bonded Palatal Expander, etc. They are unlike other dental prosthesis in that they are made with what is commonly known in the art as "cold cure" acrylic.

Acrylic is made up of two substances: a polymeric component and a monomeric component. To produce the desired acrylic material, the polymer is used as a powdered compound and the monomer is used as a liquid compound.

A variety of dental prosthetic devices have been proposed. To ease wear discomfort, it has been proposed that the acrylic material be flavored or scented heretofore. This has required the complex addition of flavoring or olfactory agents to the polymeric component or the spraying of a surface coating of a scented solution onto the prepared acrylic device.

SUMMARY OF THE INVENTION

The present invention is a fragranced orthodontic appliance and method of making the same which ameliorates the discomfort experienced by the patient by an appliance which has a pleasant taste and smell. The appliance of the present invention comprises a hard cold cure acrylic base member adapted to conform and contour to the associated palate region of the patient's mouth and associated metallic hardware in contact with the patient's teeth, wherein the acrylic base member is formed from a suitable powdered polymeric component and a liquid monomeric component, the liquid component containing a selected fragrancing oil therein.

The fragranced orthodontic appliance of the present invention is prepared by the method comprising the steps of:

admixing an effective amount of fragrancing oil with a liquid monomeric component, wherein the fragrancing oil is chemically stable and non-reactive with the monomeric component;

admixing the resulting fragrance/monomeric liquid with an effective amount of a powdered polymeric component under conditions suitable to initiate further polymerization to form an acrylic base member adapted to conform with an associated palate region of a patient's mouth; and

embedding metallic hardware in the acrylic base member such that the embedded hardware extends outward therefrom and contact the patient's teeth when the device is in position in the patient's mouth.

From this process it can be seen that the fragrance permeates the entire appliance. The fragrance is not a coating. The resultant acrylic is homogenous containing the fragrance throughout.

The appliance, when finished, is placed in the mouth in the usual manner. Nothing is required to activate the fragrance. The natural process of saliva flowing across the acrylic portion, of the appliance will carry the fragrance to all parts of the mouth and ameliorate the discomfort to the patient due to the pleasant taste and smell.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The present invention is predicated on the discoveries that the use of fragranced acrylic in the production of orthodontic appliances will enhance patient cooperation and that a fragrance imparting material can be successfully integrated homogeneously throughout the acrylic employed in the orthodontic device by admixture with the monomeric component precursor of the acrylic material before it is combined with the associated polymeric component.

The monomeric component and polymeric component suitable for use in the present invention are conventional materials commonly employed in the production of a solid acrylic material with the limitation that the polymeric component employed be a powdered material and the monomer be employed as a liquid.

The monomer used to form an acrylic orthodontic appliance can be fragranced for an individual prosthesis or in larger quantities for resale distribution. The monomer familiar in the art is methylmethacrylate.

The invention pertains to the addition of fragrance oils to methylmethacrylate or other suitable monomer. The fragrance oil employed is a material or materials which have been certified and approved by the United States Food and Drug Administration. Below is a brief list, by way of example only, of suitable fragrance oils which can be used in the present method.

POLYIFF 6071-AR Peppermint

POLYIFF 6072-AR Lemon

POLYIFF 6073-AR Grape

POLYIFF 6074-AR Pineapple

POLYIFF 6075-AR Watermelon

These materials are commercially available from International Flavors and Fragrances Corporation.

The fragrance oil should be added to the monomer in a specific ratio. The ratio should not be greater than part fragrance oil to 5 parts monomer or less than 1 part fragrance oil to 10 parts monomer. Compounds should be mixed and stored in a glass container. If too much fragrance oil is used, it will inhibit polymerization. Fragranced monomer can be used immediately or stored for later use.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3421221 *May 18, 1966Jan 14, 1969Cohen MortonOrthodontic appliance
US3600807 *Apr 14, 1969Aug 24, 1971Denture FreshOdoriferous dental apparatus
US3808686 *Jun 28, 1971May 7, 1974Hydro Dent CorpHydrophilic coating for dental prostheses
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5674067 *Jun 7, 1995Oct 7, 1997Masel; Richard I.Tensioning fitting to move and align teeth, resinous band inlcudes a flavoring substance with a pleasant taste, releases effective and constant amount of flavor for a specific time, alerts patient to replace the band
US6342203 *Oct 27, 1999Jan 29, 2002Dakota Dental Development, Inc.Compositions for dentistry comprising an oil, to repair, restore, adhere to, or protect the surface of a tooth
US6451292Aug 31, 2001Sep 17, 2002Dakota Dental Development, Inc.Methods for dentistry using compositions comprising an oil
US6589050Oct 20, 1999Jul 8, 2003Paul W. MackeyFragranced orthodontic appliances and method of forming same
US6592851 *Aug 31, 2001Jul 15, 2003Dakota Dental Development, Inc.Applying to teeth surface; hardening
US6620859Dec 15, 2000Sep 16, 2003Dakota Dental Development, Inc.Methods of preparing polymerizable dental compositions with improved taste or aroma, and that prevent oxygen-inhibited layer
US7766658Nov 30, 2004Aug 3, 2010Align Technology, Inc.Systems and methods for intra-oral diagnosis
US7947508Oct 31, 2007May 24, 2011Align Technology, Inc.Systems and methods for intra-oral diagnosis
US8075309Oct 31, 2007Dec 13, 2011Align Technology, Inc.Systems and methods for intra-oral drug delivery
US8439674Dec 13, 2011May 14, 2013Align Technology, Inc.Systems and methods for intra-oral drug delivery
EP0674896A1 *Oct 7, 1994Oct 4, 1995BANDINI s.r.LSynthetic resin-based dental material composition with antiseptic properties
WO1998020837A1 *Nov 13, 1997May 22, 1998Michael WeichselMethod of improving taste when tooth-regulation appliances are worn
WO2000023001A1 *Oct 20, 1999Apr 27, 2000Paul W MackeyFragranced orthodontic appliances and method of forming same
Classifications
U.S. Classification433/2, 433/6, 264/16
International ClassificationA61K6/083, A61C7/00
Cooperative ClassificationA61K6/083, A61C7/00
European ClassificationA61K6/083, A61C7/00
Legal Events
DateCodeEventDescription
Jan 14, 2004FPAYFee payment
Year of fee payment: 12
Jan 14, 2004SULPSurcharge for late payment
Year of fee payment: 11
Jul 30, 2003REMIMaintenance fee reminder mailed
Jul 7, 1999FPAYFee payment
Year of fee payment: 8
Jan 16, 1996SULPSurcharge for late payment
Jan 16, 1996FPAYFee payment
Year of fee payment: 4
Aug 22, 1995REMIMaintenance fee reminder mailed